<html xmlns="http://www.w3.org/1999/xhtml" xmlns:math="http://www.w3.org/1998/Math/MathML">
<head>

<bindings xmlns="http://www.mozilla.org/xbl">
  <binding id="empty">
    <content></content>
  </binding>
</bindings>

<script>
function boom()
{
  document.getElementById("frame").style.MozBinding = "url('#empty')";
}

window.addEventListener("load", boom, false);
</script>

</head>

<math:mtd><frameset><frame id="frame"></frame></frameset></math:mtd>

</html>
